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Washing The Windows On The World's Tallest Building

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Excited for the August 21 eclipse? Visit our Eclipse 2017 page to explore the science, history, and myths of the event. The Curiosity team will be viewing the eclipse alongside NASA in Carbondale, Illinois. Follow us on Facebook for live videos, trivia, and interviews on the big day.

On levels 40, 73, and 109 of the Burj Khalifa, a huge bucket machine washes the surrounding windows by moving along a track and travelling vertically with cables. But the top 111 meters of the world's tallest structure have to be cleaned by human window-washers. The men are supported by rope systems, and must dangle in the midst of high winds to scrub the surface of the building.